# NTSB MIA91LA040: Bell 206B, N2756P, Fort Pierce, FL, December 6, 1990

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: December 6, 1990, 10:45 local (15:45 UTC)
- Place: Fort Pierce, FL
- Location: 27.4975° N, 80.3726° W: Placed by OpenAirDocs at TREASURE COAST INTL (FPR), within about a mile (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=27.4975&lon=-80.3726&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report December 14, 1992
- Report: Approved by Office Director
- NTSB case key (mKey): 32800
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA91LA040
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/32800/pdf
- Page: https://openairdocs.org/ntsb/MIA91LA040

## Probable cause

THE INCORRECT CYCLIC CONTROL INPUT BY THE STUDENT DURING THE TOUCHDOWN AUTOROTATION LANDING AND FAILURE OF THE CFI TO CORRECT THIS BEFORE THE HELICOPTER TOUCHED DOWN.

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- Miscellaneous/other, landing - flare/touchdown
  - autorotation - performed, dual student
  - cyclic - improper, dual student (cause)
  - remedial action - not performed, pilot in command(cfi) (contributing factor)

## Analysis

WHILE PERFORMING A TOUCHDOWN AUTOROTATION AT ABOUT 3 FT AGL, THE STUDENT INITIATED CUSHIONING COLLECTIVE PITCH & LEVELED THE HELICOPTER. AT APRX 1 FT AGL, THE STUDENT APPLIED AFT CYCLIC CONTROL & THE HELICOPTER TOUCHED DOWN ON THE AFT PORTION OF THE SKIDS. THE INSTRUCTOR & STUDENT APPLIED FWD CYCLIC CONTROL & THE HELICOPTER ROCKED BACK & FORTH SEVERAL TIMES BEFORE COMING TO REST. NO CONTROL INPUT WAS MADE BY THE CFI BEFORE IMPACT.

## Aircraft

- Registration: [N2756P](https://openairdocs.org/aircraft/N2756P), registered now, S/N 2655 (OpenAirDocs)
- Reported make and model: BELL 206B
- Registry model: [Bell 206B](https://openairdocs.org/model/bell-206b) (registry code 1181511) (OpenAirDocs)
- Category: Helicopter
- Serial number: 2655
- Engines: ALLISON 250-C20B 317 horsepower turbo shaft
- Damage: Substantial damage
- Flight: Instructional, Part 91
- Operator: Flight Safety Int'L, Inc.
- Registered owner: Flt Safety International Inc
- Airport: FPR, St. Lucie Cnty Int'L

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 25; commercial, flight instructor, private; airplane ratings: single-engine land; instrument ratings: helicopter, airplane; medical: class 2, valid medical--no waivers/lim.; seat: left; flight hours: 1,700 total, 700 in this make and model, 1,600 as pilot in command, 240 in the last 90 days, 70 in the last 30 days, 5 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 6 statute miles
- Lowest ceiling: 8,000 ft overcast
- Temperature: 68 °F, dew point -0 °F
- Observed at: FPR

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19901206065779A](https://openairdocs.org/incident/19901206065779A), Dec 6, 1990: Bell 206B, Fort Pierce, FL, Substantial damage. Student landed on back of skids on autorotation landing. Helicopter rocked forward causing isolation mount failure.

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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